Mobile nodes have been found useful for improving performanceof network parameters such as coverage, data latency and load balancing inwireless sensor networks (WSNs). In spite of the benets which mobile nodescould oer when used in WSNs, they have been often stated as infeasible foruse. As they are expensive compared to static nodes in terms of manufactur-ing and mobility cost. This paper evaluates the utility of mobile nodes foruse in WSNs in comparison with static nodes. Novel geometric models to rep-resent the various functionalities for which mobile could be used have beenproposed, they have been utilised for the techno-economic evaluation basedon cost benet analysis. The models have been designed such that they givea generic representation of the functionalities, and enable a fair comparisonbetween them. On the basis of the analysis it is concluded that apart from thefunctional utility, mobile nodes are economically benecial for use in WSNs
